The mistress of Bruce Beresford-Redman has been living in his house even as the former Survivor producer has been investigated and arrested for killing his wife, RadarOnline.com is reporting exclusively.

RadarOnline.com broke the news that Joy Piercehad an affair with Beresford-Redman and now we’ve learned that she has been living in a Southern California home that he owns.

“Joy has been spotted as recently as last week at a house that Bruce owns,” a source with knowledge of the situation told RadarOnline.com exclusively. “Bruce’s parents had been living in the house prior to moving into Bruce and Monica‘s Palos Verdes Estates home. David and Juanita lived at the other house for years.”

Pierce has been living at a house Bruce owns in Gardena, even though their affair was thought to have ended last year. Bruce’s wife Monica found out about his affair with Pierce and confronted him.

“That’s why they went to Mexico — because she decided she wanted to try and reconcile the marriage and she believed he was done with the other woman,” Carla Burgos, Monica’s sister previously told RadarOnline.com.

RadarOnline.com exclusively obtained explosive emails between Bruce and Joy detailing their affair. We’ve also obtained emails between Monica and Joy proving the wife discovered the affair and confronted the mistress.

When RadarOnline.com visited Bruce’s Gardena house Tuesday night it appeared that no one was there, there were weeds in the yard, and it looked run down. The source with knowledge of the situation says Joy has now moved on with Bruce facing extradition to Mexico, but was even receiving her mail there last week.

“The fact that Joy had been living in the house is a slap in the face to Monica’s family,” the source said.